There are no optimal vibration damping designs for safe movement at the present stage of development high-speed rail transport. The purpose improving existing structures is their ability to simultaneously dampen both longitudinal and transverse vibrations. For dynamic research, an analytical method has been developed calculating stresses deformations sidewall frame electric locomotive bogie in ...

Abstract Under the influence of crosswinds, running safety trains will decrease sharply, so it is necessary to optimize suspension parameters trains. This paper studies dynamic performance high-speed under crosswind conditions, and optimizes train. A computational fluid dynamics simulation was used determine aerodynamic loads moments experienced by a series models train, with different were con...

In this study, the performance of shred tire mixed with railway subgrade is evaluated to reduce environmental vibrations caused by trains’ passage. Since incorporating the Shred Tire seeds in soil affects on its shear strength and deformability parameters so, the first stage of the study was allocated to conducting a series of laboratory tests such as the unconfined compression test, and CBR an...

Knowledge acquisition and reasoning are essential in intelligent welding decisions. However, the challenges of unstructured knowledge weak linkage across phases limit development intelligence, especially integration domain information engineering. This paper proposes a cognitive model combining image recognition graph. A CNN is used as perception layer to obtain direct information. Automated lo...

A bogie frame is the most important railway vehicle’s component that supports almost weight of system, and it subjected to various excitations loads can result in failure structure. The dynamic forces influenced by excitations, both internal external, speed up system's fatigue failure. This paper aims analyse impact wheel flats on life a high-speed frame. To accomplish this study, Chinese (CRH2...

Rough terrain control optimization for space rovers has become a popular and challenging research field. Improvements can be achieved concerning power consumption, reducing the risk of wheels digging in and increasing ability of overcoming obstacles. In this paper, we propose a terrain profiling and wheel speed adjustment approach based on terrain shape estimation. This terrain estimation is pe...

This paper presents the design optimization of a self-circulated ventilation system for an enclosed permanent magnet (PM) traction motor utilized in propulsion systems subway trains. In order to analyze accurately machine's inherent cooling capacity when train is running, ambient airflow and related heat transfer coefficient (HTC) are numerically investigated considering synchronously bogie ins...